PWM an electromagnetic (A/C) clutch?

[bcroe at juno.com]

Slipping (modulating) that clutch will probably be about
as healthy as slipping a regular trans clutch: a very short
trip to destruction.  

Those A/C clutches get pretty beat up even in normal
operation.

Bruce Roe

On Tue, 18 Dec 2001 11:25:13 -0700 (MST) Daniel Houlton
<houlster at user1.inficad.com> writes:
> Any thoughts on how an A/C type clutch would like being
> PWM'd?
> 
> I've been thinking about the clutch used on the supercharged
> MR2.  It's similar to an A/C clutch.  I've got an Eaton M90
> installation just about completed and was toying with the
> idea of using an electric clutch on the pulley to limit boost
> and/or have a 'valet' mode.
> 
> In theory, you could PWM the clutch to limit SC rotor speed
> to get any boost level you want up to max boost.  Not sure
> how it would work in reality though.  Seems the clutch 
> would maybe over-heat, or just wear out as they're not 
> really designed for modulation.

> --Dan

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